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lmmko ELECTRIC EOUSLY 10 Sheets-Shag V. G. APPLE 2 0 PLACE .03 THE CORE 01 N6 THEM SIMULTAN 9 1 Nov. '45 1922 ngmal Filed Nov. 6, '1922 INT HEN BENDI PRESSING INDUCTORS "NE ELEMENTS AND Dec. 20 1927-.

ncnms Poi mom Dec. 20 ,1927. R'e.'16,823

V. G. APPLE MACHINE. FOR PRESSING INDUCTORS INTO PLACE ON THE CORE OF DYNAMO ELECTRIC MACHINE ELEMENTS AND THEN BENDING THEM'SIMULIANEOUSLY km.- ,1 l0 Sheets-Sheet 2 Original Filed Nov. 6, 1922.

INVENTOR Dec. 20 1927. Re. 16,823

V. G. APPLE MACHINE FOR-PRESSING INDUCTORS INTO PLACE ON THE CORE OF DYNAMO'ELECTRIC MACHENE ELEMENTS AND THEN BENDING THEM SIMULTANEOUSLY l0 Sheets-Sheet 3 .92 lnalgjled Now 6, 1 922 Fly A3 G. APPLE MACHINE FOR PRESSING INDUCTORS 0 PLACE ON THE CORE OF D YN AND ELECTRIC INT MACHINE ELEMENTS AND THEN BENDING THEM SIMULTANEOUSLY 1o Sheets-Shet 4 Orig'ifial Filed Nov. 6, Y 1922 INVENTOR Dec. 20 1927.

v. G. APPLE INTO PLACE ON THE GORE 0F DYNAMO ELECTRIC MAUI-[ENE ELEMENTS AND THEN BENDING THEM SIMULTANEOUSLY MACHINE FOR PRESSING INDUCTORS 10 Sheets-Sheet 5 F/Ly'ZZ 1 V TOR Dec. 20 1927 V. G. APPLE MACHINE FOR PRESSING INDUCTORS' INTO PLACE ON THE CORE OF DYNAMO ELECTRIC MACHINE ELEMENTS AND THEN BENDING THEM SIMULTANEOUSLY l0 Sheets-Sheet 6 Original Filed Nov. 6,

I I I I I I I I I I I I I I I I I I fi 0 0 I I I I fi l v i-m "047/4 7 a 8 Z2 2 a INVENTOR 'V. G. APPLE MACHINE FOR PRESSING INDUCTORS INT 7 0 PLACE- ON THE CORE OF DYNAMO ELECTRIC MACHINE ELEMENTS AND THEN BENDING 'I HEM SIMULTANEOUSLY 10- Sheets-Sheet 7 )riginal Filed Nov. 6, 1922 wrllllllmflllld //////4 A???" 9252 ll 1 um u auoooooua Dec. 20 1927.

V. G. APPLE MACHINE FOR PRESSING 'INDUGTORS INTO PLACE ON THE CORE 0F DYNAMO ELECTRIC EN BENDING THEM SIMULTANEOUSLY MACHINE ELEMENTS AND TH 10 Sheets-Sheet 8 Original Filed Nov. 6, 1922 mm Mi INVENTOR- Dec. 20 T927.

' G. APPLE MACHINE'FOR PRESSING INDUCTORS INTO PLACE on THE coma 0F DYNAMO ELECTRIC f, M smummmousm MACHINE ELEMENTS p.311; TggN 5511mm THE brigigali Fil edNov. 6, I922 Reiaued Dec. 20, 1927.

This invention relates to machines I for pressing conductors into place on the cores of dynamo-electric machine elements and then bending them simultaneously.

5 One of the objects of my invention is to provide a power driven tool, by means of which a plurality of inductors may be simultaneously pressed into place on the core and then may be simultaneously and uniformly bent in respective positions to form appropriately disposed pairs so that the terminals of the conductors may be joined together for completing a circuit, and which can be (luctors themselves may be so disposed as to provide a suitable commutator.

Another object of my invention is to provide a tool, and means for adjusting it so that the extent to which the terminals are pressed and displaced will be automatically determined to the end that the operation consecutively performed on a series of like elements may quickly and accurately be accomplished, and by making slight adjustments and exchanging some of the minor parts of the machine, any size or type of be operated on.

Bar wound-dynamo electric machine ele- 0 ments of the type which this invention is intended to produce, re uire that the slots in the core be lined wit tubular insulators and these must be held in some manner. so that they will not be pushed out of the slots when the conductors are pressed into place,

and one of the objects of the present invention is to provide a means for holding these insulators against displacementwhile the conductors are being pressed into position.

vention I provide a machine into which may be placed an armature with the conductors assembled and started thru the slots. and which will automatically and accurately hold the 5 slot insulators in place, press the conductors into position, and bend them simultaneously to a predeterminedposition relative to their original plane.

Other and further more specific objects of my invention will become readily apparent, to persons skilled in the art, from a consideration of the following description .onnected to commutator segments, or the conelement within the range of the machine may- In the one embodiment of my present in-.

I Re. 16,823

PATENT orrica.

v'mcnm' 0. APPLE, or-immom orno.

MACHINE FOB PRESSING ilNDUCTOBS INTO PLACE ON THE GORE OF IbYNAJIO-ELEC'IBIO- MACHINE ELEMENTS AND BENDDN'G THEE SIMULTANEOUSI-Y.

ori inal in. 1,544,023, dated July 7, 1925, Serial in. 599,471, filed November 6, 1922. Application for reissue filed Jul 12, 1927. Serial No. 205,262.

when taken in conjunction with the drawings. wherein:

Fig. 1- is a plan view of the main frame with cams, cam gears and carriage gibs assembled thereon.

Fig. 2 is an end view of Fig. 1.

Fig. 3 is a front elevation of Fig. 1.

Fig. 4 is a plan view of. the push-in carriage.

Fig. 5 is an end view of the push-in carriage.

6 is'a front elevation of the push-in carriage. v

Fig. 7 is a plan view of the clamping carriage.

Fig. 8 is an end view. of the clamping carriage.

9 is a front elevationof the clamping carriage. Fig. 10 is a plan view of the separator carriage'.

Fig. 11 is an end view carriage. I p

12 is a front elevation of the separator carriage.

Fig. 13 is carriage.

Fig. 14 is an end view of the twisting of the separator a plan view of the twisting carriage.

. Fig. 15 is a front elevation of the twisting carriage. i

Fig. 16 is a-plan view of the twisting heads assembled.

I Fig. 17 is an end view of th assembled.

Fig. 18' is-a front heads assemble Fig. 19 is a section taken on line 11 of Fig. 16.

twisting heads elevation of the twisting Fig. 20 is another end view of the twisting heads assembled.

Fig. 21 is a plan view of the transmission assembled.

Fig. 22 is an end view of the transmission assembled. I i

Fig. 23 is a front elevation of the transmission assembled.

Fig. 24 is a section taken on line 22 of Figure 21.

Fig. 25 is a section taken on line 33 of F lg. 21. i j i Fig. 26 is asection taken on line 4-4 of Fig. 21.

Fig. 27 is a section taken on line 5--5 of Fig. 23.

Fig. 28 is a plan-view of the complete machine.

Fig. 29 'is a section taken online 66 of Fig. 28.

Fig. 30 is an endview of thejcomplete machine.

' Fig. 31 is a front elevation of the complete machine.

Fig. 32 showsan armature as it comes from the machine.

Fig. 33, shows an armature after the conductors are pressed into. place.

Fig. 34 shows the state-of an armature when it is placed in the machine.

35 is a vertical central longitudinal section of the complete machine.

Referring more particularly to Figs. 1, 2 and 3, a box-like frame 20 is open at the bottom, as at 21. Two irregular openings are also cut thru the top, as at 22 and 23. Three beveled gibs 24, 25 and 26 are securely fastened to the top of the frame 20, with screws 27, 28, 29, etc., and dowel pins 30, 31, 32, etc. Four studs 33, 34, 35 and 36 are firmly fastened in the upper part of the frame and extend downward. Gears 37, 38, 39 and 40 are placed free-torrevolve on the studs. Washers 41, 42, 43 and 44 and nuts 45, 46. 47 and 48 serve to keep thegears in place on the studs. On the top surface of gears 37, 38, 39 and. 40 are fastened, by any suitable means. box cams 49, 50, 51 and 52. The beveled openings 53 and 54, which are formed by the junction of jibs 24, 25 and 26' with the frame 20, provide suitable guides in which the carriage -m'aytravel. The carria e will be described hereinafter.

. t will be readily. seen that if slidable carriages are placed in openings 53 and 54 and a connection is made between the carriages and the cams 49, 50, 51nd 52 thru openings 22 and 23, the carriages may be operated back and forth in any manner desired, depending on' the shape of the grooves in cams 49, 50, 51 and 52. As all four? gears37, 38, 39 and 40 are in mesh, it is apparent that if a single pinion is meshed with any one ofthe gears it will be sufficient to drive all of them. The self contained transmission, having a pinion for driving the gears, will be described hereinafter.

Referring more particularly to Figs. 4, 5 nd 6, a rectangular plate 55 has its edges beveled, as at 56 and 57, and has a groove 58 cut the entire length in its top surface.

A bracket 59 is tongued to fit groove 58, and is bolted to the top surface of plate 55. By reason of oval slots, as at 60, in the base of the bracket, the bolts may be loosened and the bracket adjusted lengthwise with the plate. Other holes, as at 61 and 62, maybe tapped, or a plurality of holes may-extend the entire length of plate 55, so thatthe bracket 59.1nay occupy any position within the length of plate 55. By this adjustment armatures of any length may be operated- 166, Fig, 34, of the conductors, and serves as a guide when pushing the conductors into place. A hand operated plunger 65 may be withdrawn to permit the hollow tube 63 to.

be moved thru the bore of the bracket. The use of thehand operated plunger will be found necessary only when the armature has\ a long shaft, as at 167, Fig. 3'4, but when the armature has a short shaft or when it is built on a tube which receives a shaft, as at 168, Fig. 33, then the machine may be operated without the use of the hand plunger '65, leaving the tube always in the position in which it is shown in the drawings: On the bottom of rectangular plate 55 is securely bolted a plate 66 which supports stud 67 and roller 68.

- For convenience of description we will.

now call the parts shown assembled in Figs. 4,5 and 6 the push-iircarriage. It is readily apparent that if this carriage is mounted in the bevel-edged opening 54, Fig. 2, and the roller 68 is in position in the groove of cam 49, Fig.1. that the push-in carriage may be automatically moved back and forth, or made to stand. stationary, by properly proportioningthe groove in cam 49.

Referring more particularly to Figs. 7', 8 and 9, a rectangular plate 69 has its edges beveled, as at 70 and 71, andhas a groove 72 cut the entire length in its ,top surface. A bracket 73 is tongued to fit groove 72, and

is bolted to the top surface of the plate."

By reason of oval slots, as at 74, in the base of the bracket, the bolts may be loosened and.

plate. Other holes, as at 7 5 and 76, may be tapped, or a plurality of holes may extend the entire length of the plate 69 so that the bracket 73 may occupy any position within the length of plate 69. By this adjustment any armature may be operated on, the

length of Whose conductors are within the action of the eccentric end 81 will be relieved so that the link 79 may be swung clear to allow the lid 78 to be raised, thus permitting the armature to be removed from,

or inserted into, the opening '82. On the 73 by link 79 is ahandle S0 with no, the bracket adjusted lengthwise with the bottom of rectangular late 69 is securely bolted a plate 83, whic supports stud j and roller 85. p

For convenience of description we will now call the parts assembled in Figs. 7, 8 and '9 the clampin head carriage. -It is readily apparent t at if this carriage is mounted -11] the. beveled edged opening 53, .Fig. 2, and the roller 85 is in position in the goo've 89 cut lengthwise in its top surface.

bracket 90 istongued to fit grove 89, and

is bolted to the top surface of .the plate.

Bfy reason of oval slots, as 91, in the base 0 the bracket, the bolt-s may be loosened and the brackets adjusted lengthwise with the plate. Bracket 90 is bushed to fit hollow tube 92 which has its end cupped, as at 93. The cup 93-is of such dimensions that when presented to the end of-armature core at 169,

ig. 34,and the conductors are pushed thru, as shown at 170, Fig. 33, the inner row of conductor leads 171, .Fig. 33, will enter the outside of cup 93 and the outer row of conductor leads 172, Fig. 33, will go over the outside of cup 93. and inasmuch as the cup is caused to remain presented to the end of the armature core while the pressing-in is taking place, it supplies a means of keeping the tubular insulators from sliding out'of the armature slots while the conductors are being pushed in; and as the bending of the conductors takes place, also, with the walls of cup .93 occupying the space between the inner and outer conductorvv leads 171 and 172, it follows that whenthe bending is accomplished there will be a space between the -1nner row of leads 171 and the outer row of leads 172 after the cup is withdrawn. As it is necessa in armaturesof this. type, to have the inner and outer rows of con ductor leads insulated from each other, the

space left by the cupmay be replaced by a band of insulating material to insure their proper spacing. Since the slotted twisting members 112 and 123. hereinafter described, rotate in opposite directions to bend the conductor ends as at 174 Fig. 32 it follows that cupped member 93 also keeps the ends of the conductor bars of one layer of the.

winding from entering the bending sl vts On the bottom of rectangular plate 86 is securely bolted a plate94 which supportsstud 95 and roller 96.

For convenience of description, and inasmuch as cup 93 separates the inner and outer rows of leads, we may now call the parts if this carriage is mounted in assembled in Figs. 10, 11 and 12, the separator carriage. It is readily ap arent that e bevelededge opening 54, Fig. 2, and the roller 96 is 1n position in the groove of cam 51, Fig.

1, that the separatorcarriage may be'autoinatically moved back and forth, or made to stand stationary, by properly proportioning the groove in cam 51. I 'Referring more particularly to Figs. 13, 14 and 15. a rectangular plate 97 has its edges beveled, as at 98 and 99, and has a groove 100 out lengthwise in its top surface.

Brackets 101 and/102' are tongued to fit grooye 100 and are bolted to the top surface of the plate. By reason of oval slots as 103, in the base of the brackets, the bolts may be loosened and the brackets adjusted len thwise with the plate. Bracket 101,has rac ''-teeth out in its upper surface, at the proper angle, to mesh with a right-hand :helical gear, and bracket 102 has rack-teeth" cut in its upper surface, at the proper angle, to mesh with a left hand helical gear. The helical gears and the spindles upon which .they are mounted will I be hereinafter de-- scribed.

It can be readily seen that if the brackets 101 and 102 are moved simultaneously in the same direction, and if gears, with which they are meshed, are on spindles running lengthwise with the machine, that the spindleswill be rotated, one in one direction and the other in the opposite direction. Of course the layers of windings of this type are not always bent equally in opposite directions as here shown, 1t sometimes being desirable that one layer be bent more than the other, or cases may arise where both layers are bent circumferentially inthe same direction, the one layer more than the other,

and in such cases the racks and gears hereshown may be made accordin ly. Onthe bottom of rectangular plate 9 is securely bolted a plate 104 which supports stud 105 and roller 106.'

' For convenience of descri tion we will now call the parts assembled 1n Figs. 13, 14 and 15 the twisting carriage. It is apparent that if this carriage is mounted in the bevel edged opening 53, Fig. 2, and the roller 106 'IS in position in the groove of cam 52, Fig.

1,-that the twisting carriage may be automatically moved back and forth, or made to remain stationary, by properly proportioning the groove in cam 52.

-Referring more particularly toFigs. 16, 17, '18, 19 and 20, a bracket'1-07 has its edges beveed, as at 108 and 109,- and forms a bearing for tubular spindle lltl'which is enlarged at its'front end 111 and is drilled and tapped to support slotted twisting plate 1'12, which is slotted on its inside diameter to fit the outer row of conductor, -terminals, 172, F151.

33. On the'oppo site end of .tubular spindle 110 is mounted aright hand helical gear 113, fastened by key 114 and heldon by 'nut 115. The slotted twisting plate 112 is made to rotate by gear 113-tl1ru spindle 110. Bracket 116 has .its edges beveled, as at 117 and 118, and forms a bearing for tubular spindle 119 which is bored to fit twisting shaft 120. key 121, connects shaft 120 to tubular spindle 119 and nut 122'helps to hold the shaft The front end of and spindle together. shaft 120 is enlarged to form a disc, 'as at 123. This-disc is slotted on its outside diameter to fit the inner row of conductor-terminals 171. Fig. 33. A hole' 124, is bored in the end of shaft 120 to clear the short end of the armature shaft 173, Fig.34. Near one end of the tubular spindle 119 is mounted a left hand helical gear 125, driven by key 126 and held on by nut 127. The slotted twisting shaft is made to rotate by gear 124 thru spindle 119..

For convenience of' description We may now call the parts assembled in Figs. 16 to inclusive, the-twisting heads.

.The twisting heads, Figs. 16 to 20 inclusive, are to be mounted with the beveled edges 108 and 109, 117 and 118, of the brack-- w cts 107 and 116, in the opening 54, Fig. 2,-

V and the brackets are to be securely bolted to frame 20, Figs. 1, 2 and 3. The twisting carriage, Figs. 13, 14 and 15, is tobe slidably mounted in the opening 53, Fig. 2. It is apparent that if the right and left hand raeks'101 and 102, Figs. 13, 14 and 15, are

moved forward when in engagement with the right andleft hand helical gears 113 and 125, Figs. 16, 18 and 19, that the twisting spindles 110 and 119 will be rotated, one in one direction and the other in the opposite direction.

In Figs. 21 to 27 inclusive, I show a transmission. the purpose of which is to receive the relative high speed and low torque of a motor or other driving means, and deliver to the machine proper a relative low speedy and high torque, as required, for operating the cam gears shown in Figs. 1, 2 and 3. A further purpose of the transmission is to supply a means of connecting or disconnectpropeix.mauuallyor automatically, at will..

ing the motivepower from the machine The reduction in speed is accomplished by two worm-and-wheel gears and the disconnecting is accomplished by a toothed clutch on theslow speed shaft.

Referring to the drawings Figs. 21 to 27 inclusive, a casing 128 is. bored in its outer walls to receive ball bearing cups 129, 130, 31 and 132'. These cups contain ball bear- 'ings for supporting-the worm shafts. A

a he ical pinion 152, Figs. 25 and 26. The

wheel 154 is to operate the machine manualthe transmission is securely bolted to the un- The motive power ,is applied to shaft 135 I which is journaled at its ends in ball bearings supported by cups 129 and 130. Worm threads are cut on the middle portion, see Fig. 25, and into these threads are meshed the teeth of worm wheel 136. Worm wheel 136 is supported on the unthreaded portion of worm shaft 137 and both are journaled in ball bearings supported in cups 131 and 132, Fig. 26. The threads of worm shaft 137 are meshed with the teeth of worm wheel 138, Fig. 25. Worm wheel 138 is mounted,

free to rotate, on shaft 134. A long'hub on the upper side of worm wheel 138, supports a flanged clutch member 139 which is bolted thru its flange to the worm wheel 138, Fig. 25. I

Into an enlarged portion of shaft 134, as

at 140, are out several keyways, and into these keyways are fitted the integrally cut keys of clutch member 141, so that the clutch member 141 must rotate with shaft 134, but may be axially shifted thereon; See Figs. 25 and 27. Journaled in casing 128 shaft 142 .supports lever 143, clutch fork 144 and hand lever 145, Figs. 26 and 27 In the end of lever 143 roller 146 is mounted on stud 147 Fig. 26.

middle portion, a cavity-containing spring 148. Spring 148 presses a ball 149 into cup 150, mounted in casing 128, and helps to re-' tain hand lever in a raised position when the clutch is out of engagement. See Fig. 27. I v

It is apparent that when the power means is continuously operating worms 135 and 137 and wheels 136 and 138, the shaft 134 may be started and stopped at will thru clutch members 139 and 141, automatically by lever 143, or manually by lever 145. Above the clutch member 141, on shaft 134, is ke ed a helical gear 151 into which meshes helical pinion 152 is mountedon shaft 153. On the outer ed a hand-wheel 154. The purpose of hand- 1 thru pinion 152 and. gear 151, when clutches 139 and 141 are out of engagement. See Figs. 25 and 26." At the upper end of shaft 134 is mounted pinion 155, dr ven hv key 156 and held on by nut 157.

On the upper pads 158, 159 and 160, thru holes of which derside of frame 20, Fig. 1, in such a position that the pinion 155, Fig. .23, Wlll mesh with gear 37, Fig.1, to operate the cams and carriages, as previously described relative to Figs. 1, 2 and 3.

11 Figs. 28, 29 30 and 31 is shown the complete machine which is operated as follows: An armature, such as isshown 'inFi 34, is securely fastened to the clamping hea carriage, (principal parts of which are 69, 73,

Hand lever 145 has, at its 4 I front end of shaft 153 is mount-.

surface of casing 128 are loses 78, 79 and 80, but which is shown more in detail in Figs; 7, 8 and 9,) with its closed ends 166, turned toward spindle 63. By meansof hand-wheel 154 the clampin head carriage is moved-to present the sur ace of the core 169 against the slotted twisting plates 112 and 123, Figs. 29, 19 and 20. A

slightly, further turn of'the hand-wheel 154 moves forward the push-in carriage parts 55,

59, 63 and 65, also shown in detail in Figs.

4, and 6, until the circular groove 64, Fig.

29, engages the ends of the conductors 166 21 to 27 inclusive. The push-in carriage nowcontinues forward until the conductors are pressed home, as in Fig. 33,:with the inner row of leads within and the outer row of leads without the cup 93, Figs. 29, 10, 11 and 12. As the power continues the clamping-headand push-in carriages are drawn back, taking the armature with them, and the leads of the armature are withdrawn almost all the way out of the slotted twisting plates.

By means of the separator carriage, composed principally of parts 86, 90 and 92, shown in detail in Figs. 10, 11 and 12, the cup 93, Figs. 29, 10, 11 and 12, is made to f0 ow up the armature as it recedes, extending the circular wall of the cup beyond the face of the twisting plates, thus keeping the outer and inner rows of conductors spaced apart. I The power now continues so as to cause the twisting carriage, composed mainly of parts 97, 101 and 102, and indetail in Figs. 13, 14 and 15, to revolve the slotted twisting plates, one in one direction, and the other in the opposite direction, and while this twisting is taking lace it is necessary to ain move forward s ightly the other carriages andthe armature because in the final twisted condition the conductor leads 174,

Fig. 32, are shorter than the straight leads I 170, Fig. 33.

After the above operations are complet ed, the power continues until all carriages and the twisting plates are in their starting positions, when a lug bolted to one of the cam gears, Fig. 1, 'will contact with roller 146, moving lever 143, Figs. 21 to 27 inclusive, to stop the machine;

A bracket 163 is bolted to the bottom of the frame 20 to support motor 164 which drives the transmission shaft 135 thru connection 165.

To bring the working, parts to a conven ient height, the frame 20 is mounted on legs 161 and 162. 1

twisting plates 112 and Having described my invention what 1 claim is: I

1. Apparatus for bending the ends of bar conductors extendin thru the slots of an armature core, certain conductors bein located in the slots nearer to the axis 0 the core than others, the inner conductor ends being disposed in a circular row and the outer conductor ends in a circular row concentric with the inner row, which comprises, in combination, two coaxial rotatable members provided with concentric rows of notches adapted respectively to receive the rows of conductor ends,- gears respectively connected with said members, racks co-opcr ating respectively with said for moving the racks.

, 2. A machine for making a bar wound dynamo-electric machine element having a slot-. ted core, said machine having in combination, "means for pressing a plurality of con vductor bars endwise thru the slots of said core, and means for circumferentially dis-.

gears and means placingthe ends of said conductor bars where they project thru and beyond said core.

. 3. A machine for making a bar wound dynamo-electric machine element, said machine havin in combination, means" for ed to operate said pressing means, means for connecting said power means to said pressingmeans and means for disconnecting said power means from, said pressing means after said conductors are endwlse entered In said slot-s.

4. A machine for making a bar wound dynamo-electric machine element, said machine havin in combination, 'means for pressing a p urality of conductor bars endwise thru the core slots, power means adapted for connection to said pressing means to operate said pressing means, manual means for connecting said power means to said pressing means and automatic means for disconnecting sald power means from said pressing means after said conductors are pressed into said slots.

5. A machine for bending the ends of bar conductors extending thru the slots of a core in two concentric rows, the one row being nearer to the core axis than the other row, said machine having tin combination, means for circumferentially displacing the ends of one said row relative to the ends .of the other said row, and means to keep the ends of one said row separated from the ends of the other said row while circumferential displacement is beingeflected.

6. Apparatus for bending the ends of bar conductors extending thru the slots of an core than the others, the inner conductor ends being disposed in a circular row and the outer conductor ends III a circular row concentric with the inner row, which comprises, in combination, two coaxial rotatable members each adapted to receive one of the rows of conductor ends, means for rotating said members in opposite directions in order to bend the conductors, and means for preventing the conductor ends of one row being engaged by the rotatable member for bendin the other row of conductors. g

%. Apparatus for bending the ends of bar conductors extending thru the slots of an' armature core, certain conductors being located in the slots nearer to the axis of the core than others, the inner conductor ends being disposed in a circular row, and the outer conductor ends in a circular row concentric with the inner row, which comprises in combination, two coaxial rotatable members provided with concentric rows of notches adapted respectively to receive the rows of conductor ends, means for rotating said members in opposite directions in order to bend the conductors, and means for preventing the conductor ends of onerow being received by the notches of the notatable member for bending the other row of conduotors.

.8. A machine for bending the ends of conductor bars extending dynamo-electric machine core in two concentric rows, the one row being nearer to the core axis than the other row, said'machine havin ferentially displacing the ends of one said row relative to the ends of the other said row and means to permit the core to move toward said displacing means while said conductor ends are being circumferentially displaced to compensate for the decrease in axial length of said conductors due to bend-v 9. A machine for making a bar wound dynamo-electric machine element having va slotted core, said machine comprising, in combination, means for holding the core against axial and rotative movement, means for pressing a lurality of conductor bars endwise thru t e slots of said core, and

means for circumferentially displacing the.

ends of said conductor bars where they pro- ]ect thru and beyond saidcore.

10. A machine having in combination,

means for holding the core of a d namo-- electric machine element having axia y proectlng therefrom a plurality of winding terminals in two concentric rows, means for circumferentially displacing the ends of the rows of winding terminals in opposite directions, and means to keep the rows of terminal ends concentrically spaced apart while circumferentialdisplacement is being efiected. 1

ru the slots of a.

in combination, means for circum-' 11. A machine for bending the ends of conductor bars extending thru the slots of a dynamo-electric machine core in two con centric rows, the one row beingnearer to the core axis than the other row, said machine having in combination, means for holding the core against relative movement, means for circumferentially displacing the ends of one said row relative to the ends of the other said row, and means to move the core holding means towards said displacing means while said conductor ends are being displaced to compensate for the decrease in axial length of said'conductors due to bendmg. y

"12. A machine for making a bar wound dynamo-electric machine element having a core with slots containinginsulating linings, said machine comprising, in combination, means for pressing a plurality of conductor bars simultaneously endwise thru the core slots, means for holding thelinings against displacement while the bars are being pressed thru the slots and means for circumferentially displacing the conductor ends which extend thru the slots to form pairs to complete the winding turns.

13. A machineformaking a dynamo-elem,

tric machine element, having in combination,

means for pressing. partially entered conductors of -a core endwise thru the slots thereof until the ends of said conductors projectthru and beyond the core in two concentric rows, means for bending the ends of said rows of conductors to form appropriate,

leads, and means for keeping the rows of ends concentrically spaced apart while said bending is taking place.

14. A machine for making a bar wound dynamo-electric machine element having a core with slots containing insulating linings, said machine comprising, in combination, means for holding the core against axial and rotative movement, means for pressing a plurality of conductor, bars simultaneously endwise thru the core slots, means for holding the linings against displacement while the, bars are being pressed thru the slots, and means for circumferentially displacing .the conductor ends which extend beyond the slots to form pairs tocomplete the winding turns.

15. A machine for making a dynamo-electric machine element, said machine comprising, in combination, means for holding a core against axial and rotatlve movement, means for pressing the partially entered conductors of a core endwise thru the slots' thereof until the ends of said conductors project thru and beyond the core in two concentric rows, means for bending the ends of said rows of conductors to form appropriate leads, and means for keeping the rowsof conductor ends concentrically spaced apart while said bending is taking place.

16. In a machine for bending the ends of bar conductors extending thru the slots-of a. dynamo-electric machine core in two concentric rows, the combination of a means for holding the core against rotation, means for circumfercntially displacing the ends of one said row relative to the ends of the other said row, means to keep the rows of conductor ends concentrically spaced apart While they are being circumferentially displaced, and means to move said core holding means axially towardsaid displacing means while circumferential displacement is taking lace to compensate for the decrease in axial engt-h of the conductor ends as they are bent.

17. In a machine for making a bar wound dynamo-electric machine element having a core with slots containing insulating linings, the'combination of means for pressing a plurality of conductor bars simultaneously end-j wise thru the core slots until the ends extend thru and beyond the core in two concentric rows, means for holding the linings against displacement while the bars are being pressed thru the slots, means for circumferentially displacing the conductor ends where they extend thru said slots to form pairs to complete the winding turns, and means to keep the rows of conductor ends concentrically spaced apart while they are circumfercntially displaced.

18. A machine for making a bar wound dynammelectric machine element having a core with slots containing insulatinglinings, said machine comprising, in combination, means for holding the core against axial and rotative movement, means for pressing a plurality of conductor bars simultaneouslyendwise thru the core slots, means for holding the linings against displacement while the bars are being pressed thru the slots, means for clr'cumferentially displacing the conductor ends where they extend beyond the slots, and means to keep the rows of conductor ends concentrically spaced apart while they a means to move said core holding means axially toward said displacing means while said circumferential displacement is being efi'ected.

20. In a machine for making a bar wound dynamo-electric machineelement having a core with slots containing insulating linings, the combination of means for ,holding the core against axial and rotative movement, means for pressing a plurality of conductor bars simultaneously endwise thru the core slots, means for holding the linings against displacement while the barsare being endwise entered, means for circumferentially displacing the conductor ends where they project thru the slots, means to kee the rows of conductor ends concentrical y spaced apart while they are being circumferentially displaced, and means to move the core holding means axially toward the displacing means while displacement is'being efi'ected.

In testimony whereof, I hereunto set m hand, this 28th day of May, 1927. p VINCENT G. APPLE. 

